package com.amanda.controller;

import com.alibaba.dubbo.config.annotation.Reference;
import com.amanda.constant.MessageConstant;
import com.amanda.entity.Result;
import com.amanda.service.MemberService;
import com.amanda.service.ReportService;
import com.amanda.service.SetMealService;
import net.sf.jasperreports.engine.JasperCompileManager;
import net.sf.jasperreports.engine.JasperExportManager;
import net.sf.jasperreports.engine.JasperFillManager;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.data.JRBeanCollectionDataSource;
import org.apache.poi.xssf.usermodel.XSSFCell;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author amanda
 * @Description 统计报表
 */

@RestController
@RequestMapping("/report")
public class ReportController {
    @Reference
    private MemberService memberService;
    @Reference
    private SetMealService setMealService;
    @Reference
    private ReportService reportService;

    @RequestMapping("/getMemberReport")
    public Result getMemberReport() {
        Map<String,Object> map = new HashMap<>();
        List<String> months = new ArrayList<>();

        try {
            // 获得当前日期
            Calendar calendar = Calendar.getInstance();
            // 之前一年的日期
            calendar.add(Calendar.MONTH,-12);

            // 日期格式化
            for(int i = 0; i < 12; i++) {
                calendar.add(Calendar.MONTH, 1);
                months.add(new SimpleDateFormat("yyyy.MM").format(calendar.getTime()));
            }
            map.put("months", months);
            List<Integer> memberCount = memberService.findMemberCountByMonth(months);
            map.put("memberCount",memberCount);

            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    @RequestMapping("/getSetmealReport")
    public Result getSetmealReport() {
        Map<String, Object> map = new HashMap<>();
        try {
            List<Map<String, Object>> setmealCount = setMealService.findSetmealCount();
            map.put("setmealCount", setmealCount);

            List<String> setmealNames = new ArrayList<>();
            for (Map<String, Object> objectMap : setmealCount) {
                String setmealName = (String) objectMap.get("name");
                setmealNames.add(setmealName);
            }
            map.put("setmealNames", setmealNames);

            return new Result(true, MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS, map);
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

    @RequestMapping("/getBusinessReportData")
    public Result getBusinessReportData() {
        try {
            Map<String, Object> map = reportService.getBusinessReport();
            return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS,map);
        }catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    @RequestMapping("/exportBusinessReport")
    private Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReport();

            String reportDate = (String) result.get("reportDate");
            Integer todayNewMember = (Integer) result.get("todayNewMember");
            Integer totalMember = (Integer) result.get("totalMember");
            Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
            Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
            Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
            Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
            Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
            Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
            Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
            Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            // 获得Excel模板文件绝对路径
            String temlateRealPath = request.getSession().getServletContext().getRealPath("template") +
                    File.separator + "report_template.xlsx";

            // 读取模板文件在内存中创建Excel表格对象
            XSSFWorkbook workbook = new XSSFWorkbook(new FileInputStream(new File(temlateRealPath)));
            // 读取第一个工作表
            XSSFSheet sheet = workbook.getSheetAt(0);
            // 当前日期
            XSSFRow row = sheet.getRow(2);
            XSSFCell cell = row.getCell(5);
            cell.setCellValue(reportDate);

            row = sheet.getRow(4);
            // 当天新增会员数
            row.getCell(5).setCellValue(todayNewMember);
            // 总会员数
            row.getCell(7).setCellValue(totalMember);

            row = sheet.getRow(5);
            // 本周新增会员数
            row.getCell(5).setCellValue(thisWeekNewMember);
            // 本月新增会员数
            row.getCell(7).setCellValue(thisMonthNewMember);

            row = sheet.getRow(7);
            //今日预约数
            row.getCell(5).setCellValue(todayOrderNumber);
            //今日到诊数
            row.getCell(7).setCellValue(todayVisitsNumber);

            row = sheet.getRow(8);
            //本周预约数
            row.getCell(5).setCellValue(thisWeekOrderNumber);
            //本周到诊数
            row.getCell(7).setCellValue(thisWeekVisitsNumber);

            row = sheet.getRow(9);
            //本月预约数
            row.getCell(5).setCellValue(thisMonthOrderNumber);
            //本月到诊数
            row.getCell(7).setCellValue(thisMonthVisitsNumber);

            int rowNum = 12;
            // 热门套餐
            for (Map map : hotSetmeal) {
                String name = (String) map.get("name");
                Long setmeal_count = (Long) map.get("setmeal_count");
                BigDecimal proportion = (BigDecimal) map.get("proportion");
                row = sheet.getRow(rowNum ++);
                //套餐名称
                row.getCell(4).setCellValue(name);
                //预约数量
                row.getCell(5).setCellValue(setmeal_count);
                //占比
                row.getCell(6).setCellValue(proportion.doubleValue());
            }

            // 使用输出流下载，基于浏览器作为客户端下载，不能new FileOutputStream（指定磁盘位置）
            ServletOutputStream out = response.getOutputStream();
            // 设置响应信息
            response.setContentType("application/vnd.ms-excel"); // 表明这是一个excel文件
            response.setHeader("content-Disposition", "attachment;filename=report.xlsx"); // 指定以附件形式下载
            workbook.write(out);
            out.flush();
            out.close();
            workbook.close();
            return null;
        }catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }

    //导出运营数据到pdf并提供客户端下载
    @RequestMapping("/exportBusinessReportPDF")
    public Result exportBusinessReport4PDF(HttpServletRequest request, HttpServletResponse response) {
        try {
            Map<String, Object> result = reportService.getBusinessReport();
            // 取出返回结果数据，将报表数据写入到PDF文件中
            List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

            // 动态获取模板文件绝对磁盘路径
            String jrxmlPath =
                    request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business.jrxml";
            String jasperPath =
                    request.getSession().getServletContext().getRealPath("template") + File.separator + "health_business.jasper";
            // 编译模板
            JasperCompileManager.compileReportToFile(jrxmlPath, jasperPath);

            // 使用JavaBean数据源方式填充
            JasperPrint jasperPrint =
                    JasperFillManager.fillReport(jasperPath,result,
                            new JRBeanCollectionDataSource(hotSetmeal));

            ServletOutputStream out = response.getOutputStream();
            response.setContentType("application/pdf");
            response.setHeader("content-Disposition", "attachment;filename=report.pdf");

            // 输出文件
            JasperExportManager.exportReportToPdfStream(jasperPrint,out);
            return null;
        } catch (Exception e) {
            e.printStackTrace();
            return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
        }
    }
}
